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Innervation of the bowel and of the VP.
The myenteric plexus provides motor innervation to both muscular layers of the bowel and carries both parasympathetic and sympathetic input. The submucous plexus has only parasympathetic fibers and provides secretory and motor innervation to the bowel mucosa. Interneurons between both plexus represent the likely functional link between motor, secretory and vasomotor pathways. There are no nerve endings in the VP itself.
